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.so man.macros

.TH Tk_MainWindow 3 7.0 Tk "Tk Library Procedures"

.BS

.SH NAME

Tk_MainWindow \- find the main window for an application

.SH SYNOPSIS

.nf

\fB#include \fR

.sp

Tk_Window

\fBTk_MainWindow\fR(\fIinterp\fR)

.SH ARGUMENTS

.AS Tcl_Interp *pathName

.AP Tcl_Interp *interp in/out

Interpreter associated with the application.

.BE

.SH DESCRIPTION

.PP

If \fIinterp\fR is associated with a Tk application then \fBTk_MainWindow\fR

returns the application's main window.

If there is no Tk application associated with \fIinterp\fR then

\fBTk_MainWindow\fR returns NULL and leaves an error message

in \fIinterp->result\fR.

.SH KEYWORDS

application, main window